Walsh R, Roche L. (1979). Precipitation of acute psychotic episodes by intensive meditation in individuals with a history of schizophrenia. American Psychiatry Association. August, 136(8): 1085-6. [PubMed]

Dr Walsh, psychiatre, rapporte trois épisodes psychotiques sérieux nécessitant l’hospitalisation, provoqués par de la méditation intensive chez des gens avec un historique de schizophrénie.
«There have been several reports of adverse meditation effects, including depersonalization, altered reality testing and the appearance of previously repressed, highly charged memories and conflicts. However, as yet no clear picture as emerged of the individuals at risk for pathological risk for pathologic reactions ».

«Altered perceptions, and surfacing of repressed memories and conflicts have been reported during meditation » (Walsh and Roche, 1979). « These cases raise the issue of wheather meditation can induce psychosis….Vulnerable individuals may get stranded at this stage and eventually have a psychotic breakdown, especially under stress. People with previous history of psychosis have been recognized as more vulnerable to have a psychotic breakdown during intensive meditation" (Walsh and Roche, 1979). dans : SETHI, Sujata and BHARGAVA, Subhargava (2003). Relationship of meditation and psychosis: case studies. Aust N Z J Psychiatry.